add cache in ram for top list

app.py

@@ -620,7 +620,7 @@ def generate_breadcrumbs(subpath=None):
         for part in parts:
             path_accum = f"{path_accum}/{part}" if path_accum else part
             if 'toplist' in part:
-                part = part.replace('toplist', 'oft angehört')
+                part = part.replace('toplist', 'häufig angehört')
             breadcrumbs.append({'name': part, 'path': path_accum})
     return breadcrumbs
 

helperfunctions.py

@@ -3,6 +3,7 @@ import re
 import os
 import sqlite3
 from datetime import datetime, timedelta
+import time
 from typing import Optional
 import auth
 
@@ -12,6 +13,9 @@ CATEGORY_KEYWORDS = app_config['CATEGORY_KEYWORDS']
 
 log_db = sqlite3.connect("access_log.db", check_same_thread=False)
 
+_TOPLIST_CACHE_TTL = 600
+_TOPLIST_CACHE = {}
+
 
 
 # Precompiled regex to find date-like patterns: either dotted X.Y.Z or ISO dashed YYYY-MM-DD
@@ -110,6 +114,16 @@ def extract_structure_from_string(input_string):
     return category, titel, name
 
 def generate_top_list(category):
+    now_ts = time.time()
+    cache_key = (category, tuple(sorted(session.get('folders', {}).keys())))
+    cached = _TOPLIST_CACHE.get(cache_key)
+    if cached and now_ts - cached["ts"] < _TOPLIST_CACHE_TTL:
+        return list(cached["data"])
+
+    # Prune expired cache entries opportunistically.
+    for key, value in list(_TOPLIST_CACHE.items()):
+        if now_ts - value["ts"] >= _TOPLIST_CACHE_TTL:
+            _TOPLIST_CACHE.pop(key, None)
     
     now = datetime.now()
 
@@ -169,4 +183,5 @@ def generate_top_list(category):
                 'file_type': 'music'
             })
 
+    _TOPLIST_CACHE[cache_key] = {"ts": now_ts, "data": list(filelist)}
     return filelist

static/app.css

@@ -233,6 +233,12 @@ search {
   flex-shrink: 0;
 }
 
+.admin-nav .dropdown {
+  display: flex;
+  align-items: center;
+  flex-shrink: 0;
+}
+
 .admin-nav a:hover {
   color: var(--brand-sky);
   border-color: var(--border-color);
@@ -247,6 +253,8 @@ search {
 .admin-nav .dropdown-toggle {
   color: var(--brand-ink);
   padding: 8px 12px;
+  display: inline-flex;
+  align-items: center;
 }
 
 .admin-nav .dropdown-toggle::after {